Philips Semiconductors

Product specification

PCK2001M

2

1999 Jul 06

853-2120 21924

FEATURES

SDRAM DIMMs

DESCRIPTION

The PCK2001M is a 1–10 fanout buffer used for 133/100 MHz CPU,

66/33 MHz PCI, 14.318 MHz REF, or 133/100/66 MHz SDRAM clock

distribution. 10 outputs are typically used to support up to 2 SDRAM

DIMMs commonly found in laptop or mobile applications. The

PCK2001M has the same features and operating characteristics of

the PCK2001 and is available in the SSOP 28 pin package.

QUICK REFERENCE DATA

SYMBOL

PARAMETER

CONDITIONS

TYPICAL

UNIT

Propagation delay

2.5

2.5

ns

Rise time

1.0

ns

Fall time

700

ps

Total supply current

50

µA

ORDERING INFORMATION

PACKAGES

TEMPERATURE RANGE

ORDER CODE

DRAWING NUMBER

28-Pin Plastic SSOP

0

°C to +70°C

PCK2001M DB

SOT341–1

PIN CONFIGURATION

3

4

5

6

7

8

9

10

11

12

17

18

19

20

21

22

23

24

25

26

BUF_OUT1

BUF_OUT2

BUF_OUT3

BUF_IN

BUF_OUT16

BUF_OUT17

OE

BUF_OUT12

BUF_OUT13

BUF_OUT14

13

16

14

15

TOP VIEW

1

227

28

BUF_OUT0

BUF_OUT15

SA00447

Intel and Pentium are registered trademarks of Intel Corporation.

PIN DESCRIPTION

PIN

NUMBER

I/O

TYPE

SYMBOL

FUNCTION

2, 3, 6, 7

Output

BUF_OUT

(0–3)

Buffered clock outputs

22, 23, 26, 27

Output

BUF_OUT

(12–15)

Buffered clock outputs

11, 18

Output

BUF_OUT

(16–17)

Buffered clock outputs

9

Input

BUF_IN

Buffered clock input

20

Input

OE

Active high ouput enable

14

I/O

SDA

15

Input

SCL

1, 5, 10, 19,

24, 28

Input

3.3V power supply

4, 8, 12, 17,

21, 25

Input

Ground

13

Input

16

Input